Description

3-Ethoxy-Androsta-3,5-Dien-17-One is a high-purity steroid intermediate of significant importance in advanced pharmaceutical synthesis. This compound serves as a critical building block for the development of novel therapeutic agents, particularly in the fields of endocrinology and oncology. It is essential for research institutions and pharmaceutical manufacturers engaged in the synthesis of complex steroid-based active pharmaceutical ingredients (APIs) and reference standards.

Application

• Pharmaceutical Intermediate: A key precursor in the multi-step synthesis of specialized steroid-based active pharmaceutical ingredients (APIs).
• Research & Development: Used in medicinal chemistry research for the design and development of new drug candidates targeting hormone-related pathways.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method validation in pharmaceutical laboratories.
• Process Chemistry: Employed in scale-up and optimization studies for the commercial manufacturing of steroid derivatives.

Basic Information

Product Name	3-Ethoxy-Androsta-3,5-Dien-17-One
CAS No.	972-46-3
Molecular Formula	C21H30O2
Molecular Weight	314.46 g/mol
Synonyms	3-Ethoxyandrosta-3,5-dien-17-one; 17-Oxoandrosta-3,5-dien-3-yl ethyl ether; 3-Ethoxy-δ3,5-androstadien-17-one; δ3,5-Androstadien-17-one, 3-ethoxy-; 3-Ethoxyandrosta-3,5-diene-17-one; 3-Ethoxy-17-oxoandrosta-3,5-diene
EINECS	Contact for details

Quality Control

Our 3-Ethoxy-Androsta-3,5-Dien-17-One is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity suitable for pharmaceutical research. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles as determined by advanced analytical techniques including HPLC, GC, and NMR. We adhere to cGMP principles where applicable to support our clients' regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, open flames, and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 1.0%
Residual Solvents (GC)	Meets ICH Q3C guidelines
Loss on Drying	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.